masticator space infection
Deep neck space infection involving muscles of mastication. Can cause trismus and requires urgent management due to potential airway compromise and intracranial extension.
Full Definition
Masticator space infection refers to a serious deep neck space infection involving the masticator space, which contains the muscles of mastication (masseter, pterygoid muscles, and temporalis) and the mandibular division of the trigeminal nerve. These infections typically arise from odontogenic sources, particularly infected mandibular molars, or from penetrating trauma. Clinical presentation includes trismus (limitation of jaw opening), facial swelling, pain with chewing, and fever. The infection can spread to adjacent spaces including the parapharyngeal space and potentially the skull base, making prompt recognition and treatment critical. Management involves broad-spectrum antibiotics, surgical drainage when indicated, and close monitoring for airway compromise.
Usage
Usage note: Emphasize urgency and potential for serious complications including airway compromise.
In Context
- "CT imaging revealed masticator space infection with gas-forming organisms extending from the infected third molar." — Radiology report
- "The patient developed severe trismus secondary to masticator space infection requiring emergency drainage." — Emergency consultation